Feature rich and plenty of Mudcatters who can advise.
The only quirk which has a reason is that you Export audio files, but Save your work so that you can pick up where you left off (but delete the .aup files after you have finished, they can get big.
Oh yes and if you have multiple tracks it mixes them all on Export so if you want to export one track or a <>selection it needs Export Selection. But then you have to make a mistake to see how attention to this is necessary. You can mute tracks but the Export will still mix a muted track without the selection option. I have bits of audio in odd places which makes this alert necessary.